First of all, hi and thank you to help me,
Actually, I don’t know if my question is ask in the right project, if not please refer me to the right place.
Context: I know how to use an Arduino with his ramps 1.4 for a 3D printer but when we talk about repairing and understand how it works, I am real newby.
So, I have been printing pieces for maybe two weeks and while the printer was printing, I touch the board to see if the fans were cooling the board correctly. (I have already printed maybe 3x 4 hours + print WITH the fans) The printer suddenly stop printing and the LCD screen became all white. As far as I know, any cable or wire have been disconnected during the manipulation. There was a fried electronic / plastic smell coming out of the power supply side of the board. At first sight, there is nothing different on the board appearance (Arduino mega and ramps 1.4).
I have also notice that the circled region on the picture was kind of hot during the print. I don’t know if that is normal or if it means something.
I have no idea which component could have fired. Please give me a starting point about the problem and how could I repair it.
Thanks a lot